201121010001101 has 8 divisors (see below), whose sum is σ = 202471283090400. Its totient is φ = 199770743147472.

The previous prime is 201121010001019. The next prime is 201121010001113. The reversal of 201121010001101 is 101100010121102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201121010001101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121010001001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76109846 + ... + 78708008.

It is an arithmetic number, because the mean of its divisors is an integer number (25308910386300).

Almost surely, 2^{201121010001101} is an apocalyptic number.

It is an amenable number.

201121010001101 is a deficient number, since it is larger than the sum of its proper divisors (1350273089299).

201121010001101 is a wasteful number, since it uses less digits than its factorization.

201121010001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117835.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201121010001101 its reverse (101100010121102), we get a palindrome (302221020122203).

The spelling of 201121010001101 in words is "two hundred one trillion, one hundred twenty-one billion, ten million, one thousand, one hundred one".